"The National Archive" website releases a history of CIA involvement with top Mexican officials studying student unrest. The report recounts events surrounding the Tlatelolco massacre of protestors prior to the black power Olympics. It's an interesting piece. Here's an example of the prose:
"On the job, Scott obsessed about the possible influence of communism and Cuba in Mexico but reluctantly conceded that the student movement was not communist controlled. That summer the U.S. Embassy compiled a list of 40 separate incidents of student unrest since 1963. Twenty three of the incidents were motivated by school grievances; eight protests concerned local problems. Six were inspired by Cuba and Vietnam. Four of the demonstrations put forth demands related to the authoritarianism of the Mexican system. (Note 9)
In June 1968, U.S. Ambassador Fulton "Tony" Freeman called a meeting with Scott and other members of the Embassy staff. France had just been engulfed by student demonstrations so massive that the government fell. Freeman wanted to discuss whether the same thing could happen in Mexico. Because of his contacts in Los Pinos..."
Full report at
http://www.gwu.edu/~nsarchiv/NSAEBB/NSAEBB204/index.htmmvs